CAPE Biology Unit 1 · 2010 · Paper 1
39 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.
- Q11 mark · multiple choiceWhich of the following bonds between the molecules enables water to exist as a liquid rather than a gas at normal room temperature?
- Q21 mark · multiple choiceItem 2 refers to the diagram below which shows a ring structure of glucose. Which of the following indicates the form of glucose and the molecule in which it is present?
- Q31 mark · multiple choiceCarbohydrates are transported in plants MAINLY in the form of
- Q41 mark · multiple choiceItem 4 refers to the chemical structure of the molecule shown below: The molecule represented in the structure above is a
- Q51 mark · multiple choiceTriglycerides are excellent sources of energy for the body because of their I. large size II. ability to insulate III. large number of C-C bonds IV. insolubility in water
- Q61 mark · multiple choiceIn chronic rheumatoid arthritis, cartilage of joints is thought to be digested by hydrolytic enzymes found in the
- Q71 mark · multiple choiceIn microscopy, the term 'resolution' is used to describe the
- Q81 mark · multiple choiceThe molecule that is also produced during the formation of a peptide bond is
- Q91 mark · multiple choiceWhen viewed with the aid of an electron microscope, the cells in a specimen were found to have closely packed mitochondria with cristae that were very close together. It is likely that the MAIN function of these cells is
- Q101 mark · multiple choiceWhich of the following diagrams BEST illustrates the effect of temperature on the rate of an enzyme-catalysed reaction?
- Q111 mark · multiple choiceA plant cell is placed in a solution with a less negative water potential than its cell sap. This results in the cell becoming more
- Q121 mark · multiple choiceA scientist who wanted to identify the tissue that transports the products of photosynthesis, exposed the plant to radioactive carbon dioxide. After some time a section was cut through the root of the plant and it was…
- Q131 mark · multiple choiceItem 13 refers to the diagram below which shows a plasma membrane. The figure above BEST demonstrates
- Q141 mark · multiple choiceItem 14 refers to the diagram below which represents the activation energy for an enzyme-catalysed reaction and an uncatalysed reaction. The activation energy for an enzyme-catalysed reaction is represented by the…
- Q151 mark · multiple choiceItem 15 refers to the diagram below which shows the effect of increasing substrate concentration on the rate of an enzyme-catalysed reaction. Which of the labelled curves BEST represents the presence of a competitive…
- Q161 mark · multiple choiceWhich of the following types of bonds holds together the two strands of nucleotides in a DNA molecule?
- Q171 mark · multiple choiceThe copying of a DNA strand to produce a strand of mRNA is
- Q181 mark · multiple choiceItem 18 refers to the diagram below showing a segment of a strand of DNA. The base X is
- Q191 mark · multiple choiceItem 19 refers to the diagram below which shows a cell at mitotic anaphase. The haploid number of chromosomes for this organism is
- Q201 mark · multiple choiceWhich of the following statements are true for chromatin but NOT for chromosomes? I. Contain DNA II. Contain protein III. Compact, tightly coiled structures IV. Loosely coiled, long threads
- Q211 mark · multiple choiceIn meiosis, chromatids separate by splitting at the centromeres during
- Q221 mark · multiple choiceWhich of the following combinations correctly represents the chronological order of the events occurring in meiosis? I. Chromatid pairs line up at right angles to the equatorial plane. II. Homologous chromosomes are…
- Q231 mark · multiple choiceMeiosis contributes to heritable variation as a result of I. random fusion of gametes during fertilization II. independent assortment III. crossing over IV. homologous pairing of chromosomes
- Q241 mark · multiple choiceItem 24 refers to the following information. Restriction enzymes cut DNA molecules only at specific target sites with particular base sequences. The target sites for some restriction enzymes are shown in the table…
- Q251 mark · multiple choiceThe function of DNA ligase in genetic engineering is to
- Q261 mark · multiple choiceWhich of the following statements is INCORRECT? Mitosis is important in
- Q271 mark · multiple choiceSelf-fertilization between
\text{F}_1plants produced an\text{F}_2generation in which one plant had red flowers, two had pink flowers and one had white flowers. Which of the following does this experiment… - Q281 mark · multiple choiceThe phenotype of an organism is BEST explained as those visible characteristics that
- Q291 mark · multiple choiceBoth Pinus radiata and Pinus attenuata occupy the same habitat. However, Pinus radiata flowers in February while Pinus attenuata flowers in April. What type of isolating mechanism does this exemplify?
- Q311 mark · multiple choiceWhich of the following methods of asexual reproduction is INCORRECT, either by its definition or its example?
- Q321 mark · multiple choiceWhich of the following structures is NOT involved in asexual reproduction?
- Q331 mark · multiple choiceIn some plants the androecium matures before the gynoecium. Such plants are described as
- Q341 mark · multiple choiceWhen the pollen grain alights on the stigma and starts to grow, the first action is that
- Q351 mark · multiple choiceItem 35 refers to the diagram below which shows an anther. Which of the numbered structures produces the gametes?
- Q371 mark · multiple choiceItems 37 and 38 refer to the diagram below which shows a longitudinal section through an ovule of an angiosperm. After fertilization, the region labelled X will develop into the
- Q381 mark · multiple choiceItems 37 and 38 refer to the diagram below which shows a longitudinal section through an ovule of an angiosperm. The role of Y is to
- Q421 mark · multiple choiceWhich of the following hormones is directly responsible for the release of the ova from the ovary?
- Q441 mark · multiple choiceThe role of high-dose progesterone-only pills is to
- Q451 mark · multiple choiceItem 45 refers to the figure below which is a simplified diagram showing early stages of human embryonic development. The part that is responsible for the mechanical protection of the embryo is labelled